Lamp-burner.



Patented Dec. `25, |900.

regar@ JJGREGORY.

LAMP BURNER.

(Application led Mar. 19, 1900.)

(Ho Model.)

TH: mams PETERS co, Pumauwo., wAsHlNcToN, D. c.

VUNTTED STATES PATENT FFIC.

JOSEPH GREGORY, O JERSEY CITY, NEW` JERSEY.

LAM P-BURN ER.

SPECIFICATION forming part of Letters Patent No. 664,742, dated Decemtr- 26, 1903.

Application tiled March 19, 1900. Serial No. 9,284. tNo model.:

To @ZZ whom it may concern:

Be it known that I, .Tosi-IPH GREGORY, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Lamp-Burner, of which the following is a specication.

My invention is an improved lamp-burner in which the center tube does not extend downward through the oil-chamber, but depends upon air drawn through ports above the oil to supply air to the inside of the flame.

Another feature of my present improvenient is a wick-carrier having a verticallymovable partition-plate transversely disposed A in the inner wick-tube, between the air-ports thereof.

Another feature of my invention is an improved center tube supplied with air drawn through ports located within the collar of the oil-chamber.

Another feature of my invention is the provision of improved means for preventing the heat from passing from the wick-tube into the oil.

With these and other ends in view my invention consists in the peculiar construction and combination of devices hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure l is an elevation, partly in section, of a lamp- Lburner embodying my improvements, the

wick-carrier being shown in an elevated position as when a wick is being fitted to the burner. Fig. 2 is a transverse section taken on the line c a: of Fig. l and showing the wick-raiser lowered. Fig. 3 is a detail View of the wick-carrier as existing when blanked from sheet metal and before being bent and shaped to tit upon the center tube. Fig. 4 is a vertical transverse sectional view of a modified form of my lamp-burner adapted for small glass lamps in which the air-ports are located above the oil-chamber. Fig. 5 is a detail horizontal sectional view of a modified form of my invention in which the lateral air-ports extending from the center tube are provided with horizontal Wings adapted to be fastened to the body of the air-distributer and support the center tube in place. Fig. 6 is a detail view of a modified construction of the lamp-collar.

The wick-carrier 30 is blanked or struck t the two sections c thereof.

from sheet metal, as shown in Fig. 3, preferably in one piece, bent on the lines ct and curved to fit the outside of the center tube 6l and adapted to slide vertically thereon. The wick-carrier has its connecting portion left straight, forming the bridge 10, which unites The wick-carrier is applied to the center tube 6 from the lower end of the latter, the bridge l0 extending transversely across the center tube and adapted to travel in vertical slots l'o ,with which the center tube is provided, said slots extending to within a suitable distance of the upper end of the center tube and having their lower ends open, as shown in Figs. l and 4. The wick-carrier is actuated to raise and lower the wick by a button on the outer end of the shaft l5, which extends through a tube 17, fastened in the upper part of an air-port 7, and on the innerend of said shaft is a pinion 16, which,when the wick-carrier is shipped into position on the center tube, engages a rack-bar 9, with which said wick-carrier is provided. The rack-bar may be struck up from a blank in one piece and isfolded upon itself vertically and has its edges laterally extended, thereby forming a partition V8, as shown in Figs. 2 and 4:, said partition extending transversely across the center tube 6. The partition 8 and rack-bar 9 being fastened together and the partition 8 fastened to the bridge lO of the wick-carrier within the center tube, as shown, it is obvious that when a rotary motion is imparted to the shaft and pinion by means of the button vertical motion is imparted to the rack-bar 9, partition 8, and wick-carrier, causing them to move vertically together. The partition serves the double purpose of bracing and guiding the rack-bar and stopping or preventing the air from rushing in from opposite directions through the air-port 7 and of causing the air inducted through said ports to be deected and caused to pass upward to the flame.

I am aware that it has been heretofore proposed to provide a center vtube witha stationary partition located between the airports, and this I disclaim. I am also aware that it has been heretofore proposed to employ a wick-carrier having teeth which are normally projected outward into engagement with the wick by riding on the center tube, and this also broadly I disclaim; but owing IOO toy the limited space such a wick-carrier has l and the ring l2. HenceA the. lower portion of never heretofore been adapted to a center tube having air-ports, and the same constitutes an import-ant feature of my invention, as hereinafter specifically claimed.

The wick-carrier is limited in its upward movement by the bridge coming in contact with the upper ends of slots 13 and in its downward movement by coming in contact with a stop 14 at the lower end of the center tube, this, stOp` being preferably formedl by forcing the metal outward at a suitable point on the lower end ofthe center tube. By springing the lower end of the center tube inward the wick-carrier may be slipped into position'on the center tube over the stop 14, the

; center tube after the wick-carrier clears said stop immediately springing ou-tward and bringing the stop in the path of the carrier, as" will be readily understood. The lower end of the center tube maybe closedjand slotted to receive. the rack-bar and partition in lamp-burners of large size; but this is not necessary in burners of small size. The airports '7 are ot' diamond shape, as shown in dotted lines inV Fig. 4 and as indicated in Fig. 1v by the shading, this form of the air-ports adapting my burner to employ the common form of cylindrical wick split upon opposite sides for a suitable distance from one end,

such a wick being adapted to open and pass around the ports and resume its cylindrical form below the ports, and thus avoidD the necessity of' mutilating the wick.

lnthe form of my burner illustrated in Fig. 1 the air-ports are provided with wings 29, turned back from their outer edges to guard the wick and preventthe same from spreading out and closing the air-space 20 between theouter edge ofl the air-port 7 and the airdistributer 1. In smallburners one such airport may be sufficient, while in. very large burners three of such ports may be required, and hence l vary the number of such air-ports and do not restrictmyself in this particular. The upper sides of the air-portsare fastened tothe under side of a ring` l2, which ring is fastened to the air-distributer l, as shown, whereby the center tube is supported concentrically within the air-distributer;

In themoditied form of my inven-tion shown in Fig. 5V the ring lz is omitted and wings 31 are made integral with the upper sides of the air-ports 7 and fastened tothe body of the lower air-distributer l and serve to holdA the center tube 6 in position. When the ring 12 is used, it serves to'slrengthen the burner.; but the said ring is not essential to the eliicient operation ol' the burner and may be entirely omitted, as herein indicated.

Tfhe outer wick-tube ls short as comparedwith the outer wick-tubes of existing lampburners of this class, andsaid tube is provided `at its lower end with an outwardlyturned horizontal flange 4, which rests upon the ring l2 and partially closes the annular openingrl8,which is between the center tube the wick, which. extends. below the said ring 12, is entirely uncovered to economize in the manufacture of my burner, and to facilitate the wicking I do not use au outer wick-tube below the upper end of the air-ports, nor do I restrict myself to its disuse, as it involves no invention to put in such tube. It will be observed that the upper section 2 of the airdistribute'r or outer casing of the burner is detachable from the lower section l thereof and that the said upper section 2 at its lower edge tits within the upper portion of the lower section 1 and bears upon the flange 4 of the wick-tube, as at 2% The air-distri-buter 2 and the flange 4 maybe made integrally and fastened to the lower end of outer wick-tube 5, as usual i-n center-d raft lamps. The chimney-holdersand'gallery andperfoiated` upper section Y of the galler f are supported' bythe air-distributer 2 and may be detached or secured thereto. By thisconstruction Lam enabled to remove the enti-re outer wick-tube inY order torfacilitatethe fitting of awick on the burner- The flange 4-at the lower end of'V the outer wick-tube 5- by-beingseated on the ring- 12 reduces the. large wick-space 18; to

vnormalsize above the airports-and1prevents the airfrom passing ffrontthe lowerai-'r-chamf ber 20, formedwithin the lowersectionoftheV air-distributer 1, upward into the upper ai-rchamber 2 l,which is formed'fwit-liin the upper section 2'of the air-distr-ibuter. In-the opera- IOO tion of wicking the lamp-burneror attaching Y ment with the wick. The outer wick-tube Y being then replaced, theoper-ation-off wicking the lamp is completed. Should it become=de sir-able to secure the. flange` 4- of the outer wick-tube tothe'l'ower side of. the upper-seciro I tion of.the-air-distributer, this may be readily j eeeted i-n the` manufacture of 'my lampburner, as is obvious. In practice I indthat the draft is much stronger onV the outside of the flame than it is on the inside, and' if'the space 18 around the wick were leftopenthe air entering the lower air-chamber 20 would be drawn up into the upper air-chainbei-:Ql to the detriment of the supply of air tothe inner side of the dame. It was to obviat-e this difficulty that I have so coustructed'my improved burner that this space isclosedIbetween the upper and lower sectionsof'the air-distributer at the upper sides of the'airports.

In lamp-burners heretofore constructed the wick-tubes extend-downward from the burners into the oil-chamber and in direct" contact' with the oil therein or connected'directly with the collar of the oil-chamber, and inasmuch as the wick-tubes become highly heated whenV the burners are in operation the heat is comin unica'ted from the llame to the oil through I the wick-tu bes, which are conductors of heat, and hence the temperature of the oil in the oilchamber is appreciably raised, and this heating of the oil is dangerous and at times results in explosion. In my improved lampburner the wick-tu bes do not come in contact with the oil, and that portion of the wick which depends below the outer wick-tube is in the air-chamber 20, intermediate of said outer wicl-tube and the oil-chamber, where it is kept cool by the currents of air which have gone inward through the perfor-ations in the side of the lower section l, and hence the oil in the oil-chamber is effectuall'y prevented from becoming heated.

In lamps of large size the air-distributer is detachably fastened to the collar 25 of the oil-chamber. In Fig. l this collar is shown as being outturned and extending vertically above the oil-chamber. In the modilied form of my invention shown in Fig. 6 this collar 25 is shown as inturned and extending downward within the oil-chamber, and this latter construction of the oil-chamber and collar is preferable, inasmuch as it admits of the burner being correspondingly lowered and brought nearer the oil.

vIn large lamps requiring considerable quantities of air for the center tube I provide perforat-ions 22 in the oil-chamber around the collar 25, through which perforations the air passes to the center tube through the lower section l of the air-distributer and the airports 7. I further provide an annulns 24, which is fastened within the oil-chamber below the opening 22 and extends to the lower side of the burner and prevents the oil from passing out through the holes 22 when the oil-chamber is full in the event that the lamp be tilted or inclined when being handled.

In small glass lamps the air-distributer is detachably fastened to a reducer 19, having a threaded nipple 28, which is adapted to be screwed into the collar of the glass bowl, as will be readily understood.

Having thus described my invention, claim-- l. In a center-draft lamp, the combination with an inner wick-tube having air-ports, of a wick-raiser havinga vertically-movable partition extending across the inner wick-tube between the air-ports, substantially as described.

2. In a'center-draft lamp, the combination of an inner wick -tube, having laterally-extending air-ports, an outer wick-tube, a wickraiser on the inner wick-tube having a vertically-movable partition extending across the inner wick-tube between the air-ports, and a shaft extending through one of tbe air-ports and having a'pinion engaging a rack-bar with which said vertically-movable partition is provided, substantially as described.

3. ln a center-draft lamp, the combination of an outer wick-tube, an inner wick-tube having laterally-extending air-ports below the lower end of the outer Wick-tube and provided further with vertical slots on opposite sides, a wick-raiser on said inner wick-tube and having a bridge-piece adapted 'to work vertically in said slots, a partition-plate attached to s aid bridge-piece and having a vertical rackbar, and a shaft extending through one of the air-ports and having a pinion engaging the said rack-bar, substantially as described.

et. In a center-draft-lamp burner, the combination of a lower air-distributer adapted to be attached te the collar of an oil-receptacle, an inner wick-tube supported at its base by said lower air-distributer, said inner wicktube having air-ports, Within said lower airdistributer, an upper air-distributer, on said lower air-distributer and non-com municating therewith, and an outer wick-tube supported by said upper air-distributer, substantially as described.

5. In a center-draft lamp, the combination with an inner wick-tube, having lateral airports, of a vertically-movable partition across the path of the air-ports, substantially as described.

6. In a center-draft lamp, the combination with the center tube having lateral air-ports, of a vertically movable partition located within the center tube across the path of the air-ports, and a rack-bar fastened to the partition and movable therewith, substantially as described.

7. In a centerdraft lamp, the combination with the center tube having lateral air-ports, of a wick-carrier sliding on the center tube and having a bridge extending through the center tube and fastened to the wiclvcarrier, the bridge adapted to move vertically in slots cut in the center tube extending from the bottom upward, a partition within the tube, across the path of the airports, a rack-bar fastened tothe partition, and the partition fastened to the bridge, a pinion meshed into the rack-bar and having a shaft extending out through the air-port, a button on the end of the shaft whereby a rotary motion is given to the shaft and pinion imparting a vertical motion to the rack-bar, partition, bridge and wick-carrier causing them to travel together, substantially as described.

8. In a center-draft lamp, the combination with an oil-receptacle having a collar to receive a burner, of an inner wick-tube, having one or morev air-ports, extending down into the collar, an air-dstributer around the air-ports and detachably fastened to the co1- lar, substantially as described.

9. In a center-draft lamp, the combination with an oil-receptacle having a collar to re ceive a burner, of air-ports to supply air to the inner wick-tube, the air-ports extending below the plan-e of the collar, a space being formed between the air-ports and collar and communicating with the outer air, substantially as described.

10. In'the kind of lamp described, the com- IIS bination with the center tube, of .a wick-carrier formed in two sections, sliding on opposite sides of said tube, and united by a bridge extending through the center tube, said bridge adapted to move vertically in slots cut in opposite sides of the center tube.

11. In a central-draft lamp, the combination with an inner wick-tube supplied with air drawn through an opening in said tube above the oil, of an outer wick-tube terminating at its lower end at a point higher than the said opening in the inner wick-tube whereby the wick-space formed between said wicktubes terminates at its lower end above said opening in the inner wick-tube, and means to admit air to the wick below said outer Wicktube.

12. In a central-draft lamp, an inner wicktube, an outer wick-tube disposed around the upper portion thereof, a casing forming an air-space surrounding the lower portion of the inner wick-tube, and extending below the u pper plane of the oil-fount, said inner wicktube having air-ports opening into said airspace at a Ipoint below the upper plane of the oil-fount, substantially as described.

13. In a lamp of the class described, the combination with an inner wick-tube, of adetachable outer Wick-tu be, a wick-space between, said wick-,space opening into and passingI through an air-chamber before entering the oil-fount.

14. In a central-draft lamp, the combination with an inner wick-tube, .supplied with air drawn through an opening in said tube above the oil, of a detachable outer wick-tube disposed around the upper portion of the inner wick-tube and terminating above said opening, said inner wick-tube extendinga distance down into the oil-chamber, and means to admit air tothe wick below said outer wicktube, substantially as described.

15. In a lamp of the yclass described, the combination with an inner wick-tube having lateral air-ports, of .a detachable outer wickltube disposed around the upper portion of the inner wick-tube and terminating above said air-ports, the lower portion of said air-ports extending a distance down into the oil-chamber, and means to admit air to the wick below said outer wick-tube, substantially as described.

16. In a .lamp'of the class described, the combination of .an oil-receptacle having a collar and a series of air-openings adjacent to the collar, va burner seated in said collar, and means, coactingwith the burner, to prevent oil from shaking `out through the said openings, substantially as described.

18. In a lamp of the class described, the combination with an inner and Vouter wick,-

tube, of a perforated casingconcentric with both said tubes and supporting the same, the perforations in said outer casing extending below the outer wick-'tube and said casing detachably connecting the burner to the oilfount, substantially as described.

19. In a central-draft lamp, the combina-V tion with an inner wick-tubeV having air-ports,

of a wick-raiser having a vertically-movable partition extending across the inner wicktube between the air-ports.

20. The combination with an oil-receptacle having a series of air-openings adjacent to the' collar, of a burner havingan inner wick-tube j provided with air-openings at its base to admit air to the interior thereof, 'an outer @asf ing, and a detachable outer wick-tube ,having a base-liange extending to the outer casing, and above the air-inlet openings in said inner wick-tube, substantially as described.

21. In a central-draft-lamp bu menthe combination of a fixed, outer, lower easing,adapt 825Vir ed for the admission of air to the interior Y said wick-.space communicating at its lower Y side with the interior of the lower casing, substantially as described. Y 22. In acentral-draft-lamp burner, thelcolnbination of a lower, outer casing, an inner wick-tube having air-.inlet openings at its base, to admit air to the interior thereof, an upper casing detachable from the lowercasin g, and a detachable outer wick-tube having a base-liange forming a division between said IlIOV upper .and lower casings, `a wick-,space being f Y formed between the inner and vouter wick- Y tubes, said space, at its lower side, commmnieating with the interior of the lower casing, substantially as described.

177157' fifi 23. In .a lamp of .the class described, `the Y f combination with an oil-receptaclel having a 'Y downturned collar to receive the burner, a series of air-openings to admit air to the space surrounding said collar, and an annulus, bef low the said collar, of a burner adapted to t within the said collar and said annulns, said burner having air-inlet openings communicating with the airspace surrounding saidV collar, substantially as described.

24. In a central-draft lamp, the combina-n tion with an inner wick-tube, of .a wickcar-V rier having sections engagingand sliding on opposite sides of said wick-tube, a bridge uniting said sections, and upwardly-extending arms having teeth held out into engagement with the wick by riding `on the inner Ywicktube, substantially as described.

25.In a central-draft lamp, the combination with an inner wick-tube, of a wick-carrier having wick-engaging teeth held out into engagement with the wick by contact with the wick-tube, said wick-carrier having a bridge extending through the inner wicktube, substantially as described.

26. In a central-draft lamp, an inner wicktube, a casing forming an air-space surrounding the same, said wick-tube having air-ports opening into said air-space at a point below the upper plane of the oil-fount, substantiallp as described.

27. In a central-draft lamp, an inner wicktube, an outer wick-tube, a casing forming an air-space surrounding the portion of inner wick-tube below the outer wick-tube and in which thev lower portion of the wick is disposed and extending below the upper plane oi' the oil-fount, said inner wick-tube having air-ports opening into said air-space at a point below the upper plane of the oil-fount, substantially as described.

28. In a central-draft lamp, the combination of a casing, an inner wick-tube supported thereby, an outer wick-tube detachabl y secured to said casing, said outer wick-tube being disposed around the upper portion of the inner wick-tube and said casing forming an air-space surrounding the lower portion of the inner wick-tube, below the outer wicktube, substantially as described.

29. A centraldraftlamp burner having a perforated outer casing forming the connection between said burner and the oil-fount, an inner and outer wick-tube disposed in said casing, the latter admitting air between said outer wick-tube and the oil-fount, to prevent the heating of the latter, substantially as described.

30. In a central-draft lamp, the combination with an inner wick-tube having laterallyextending air-ports at the lower end, a casing forming an air-space around the lower portion of said inner wick-tube, into which air-space said air-ports open, and an oil-fount having openings around the collar thereof to admit air to the lower end of said inner wick-tube, substantially as described.

3l. In a central-draft burner, the combination of an inner wick-tube havinglateral airports extending down into an oil-chamber, of a detachable outer wick-tube, a wick-space being formed between said wick-tubes, and an air-distributer detachably connecting said wick-tubes with the oil-chamber, substantially as described.

32. In a central-draft burner, the combination with an oil-chamber havinga downturned collar, of an inner wick-tube supplied with air drawn through openings above the oil, a detachable outer wick-tube, a wick-space being formed between said wick-tubes, and a perforated air distributer detachably con-v necting said wick-tubes with the oil-chamber, substantially as described.

the oil-chamber, of a perforated outer casing forming said air-space, and detachably connectin g the burner with the oil-chamber, substantially as described.

35. In a central-draft burner, the combination with an inner wick-tube supplied with air drawn through a plurality of openings surrounding the collar of the oil-chamber, of a detachable outer wick-tube, a wick-space being formed between said inner and outer wick-tubes, and a detachable air-distributer surrounding the outer wick-tube and supplying air to the exterior of Jthe iiame, substantially as described.

, 36. In a central-draft burner, the combination of an outer perforated casing extending above and below the upper plane of the oil` chamber and detachably connecting said burner with the oil-chamber and forming an air-space within said outer casing, of an inner wick-tube having lateral air-ports opening outwardly into said air-space above and below the upper plane of the oil-chamber, substantially as described.

37. In a central-draft lamp, the combination with an oil-chamber having a downturned collar and openings to admit air to the space surrounding said downturned collar, of a burner having a casing, the lower portion of which forms an air-chamber communicating with the outer air, an inner wick-tube having air-ports communicating with said air-chamber and leading to the center of said inner wick-tube, and a detachable outer wick-tube having a base-ange extending to and supported in said casing, at a point between the upper and lower sides thereof, an air-space being formed in said casing, around said outer wick-tube, above said iiange, substantially as described.

38. In a central-draft lamp, the combination of an inner wick-tube, a detachable outer wick-tube and an oil-fount having openings above the oil-level, to admit air to the inner wick-tube, substantially as described.

In testimony7 that I claim the foregoing as my own I have hereto ainxed my signature in the presence of two witnesses.

JOSEPH GREGORY.

Witnesses:

RALPH J. J oRDAN, JAMES F. GANNON.

IOO

IOS

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